1 Ganglia-groups of neuron cell bodies that lie peripheral to the central nervous system in vertebrates. 2  Bipolar neurons-cell body located near the middle of the axon; characteristic of retinal neurons. 3  Unipolar neurons-cell body lies off to one side of axon; characteristic of sensory neurons.
The principal host for diamonds are rocks formed in the earth's mantle that are known as eclogite and peridotite that are carried to the earth's surface in magmas known as kimberlit e and lamproite.
Lab 2. Igneous: Gems can occur in any type of rock. types of rock, igneous, sedimentary, and metamorphic. Each forms in a different way. fire). Gems formed in these rocks crystallize as the molten rock cools (in most cases). molten material is called magma below the surface and lava when it flows on the surface. The igneous rocks are primary and formed the crust as the earth cooled. formed today both above and below ground.